Condensing Water Heater Vs Tankless

Outdoor tankless water heaters must be durable to withstand the environments.

Condensing water heater vs tankless. Corrosion is one of the biggest concerns with a condensing tankless water heater. On the other hand condensing tankless water heaters may reduce the expenses for making it able to run overall. Water heaters with tanks. But in a condensing tankless water heater the high temperature exhaust gases are extracted to produce additional heat.

Tankless water heaters are more compact and can heat up water as you use it. Condensation happens when a hot gas comes in contact with a cold surface. Condensing tankless water heaters are inherently more efficient as the capture more of the heating energy and have much lower exhaust temperatures. They can achieve efficiencies of up to 98 percent.

Condensing water heaters are improving the effectiveness of the tankless water heaters with another step. With the lower exhaust temperatures it is possible to use inexpensive pvc venting materials. Rinnai v series he tankless hot water heater. Relatively non condensing tankless water heaters are less expensive compared to the other type.

See in a traditional type of model the water is heated with gas and the steam that is caused by the combustion gets vented outside where it dissipates into the air. The act of condensation results in several components having a shorter lifespan. Condensing water heaters are an option if you heat with gas and need. Luckily rinnai takes that into consideration and they create high quality units that work well and last for a long time.

The v65en model is a clear example of that. For gaining more efficiency it s essential to use the remaining heat. While tankless water heaters run more efficiently than storage tank water heaters replacing a tank water heater with a tankless can be expensive and the payback time can be longer than the warranty. The mechanism heats the water whereas the combustion exhaust remains hot.

Tankless water heaters of course don t hold much water so the number to look for is the gallons per minute rating gpm. A condensing tankless water heater is simply a tankless model that doesn t release the condensation caused from heating the gas out through the exhaust. This unit is for outdoor installation only. To counteract this stainless steel alloys are generally the best choice when choosing a condensing water heater.

Therefore it only exhausts cooler gases around 120 degrees fahrenheit or 48 8 degrees celsius.